The Twelve Grand Concertos, Op. 6, HWV 319–330, by George Frideric Handel are concerti grossi for a concertino trio of two violins and cello and a ripieno four-part string orchestra with harpsichord continuo. First published by subscription in London by John Walsh in 1739, they became in a second edition two years later Handel's Opus 6. Taking the older concerto da chiesa and concerto da camera of Arcangelo Corelli as models, rather than the later three-movement Venetian concerto of Antonio Vivaldi favoured by Johann Sebastian Bach, they were written to be played during performances of Handel's oratorios and odes. Despite the conventional model, Handel incorporated in the movements the full range of his compositional styles, including trio sonatas, operatic arias, French overtures, Italian sinfonias, airs, fugues, themes and variations and a variety of dances. The concertos were largely composed of new material: they are amongst the finest examples in the genre of baroque concerto grosso.The Musette, or rather chaconne, in this Concerto, was always in favour with the composer himself, as well as the public; for I well remember that HANDEL frequently introduced it between the parts of his Oratorios, both before and after publication. Indeed no instrumental composition that I have ever heard during the long favour of this, seemed to me more grateful and pleasing, particularly, in subject.

Arcangelo Corelli was an Italian composer and violinist of the Baroque era. His music was key in the development of the modern genres of sonata and concerto, in establishing the preeminence of the violin, and as the first coalescing of modern tonality and functional harmony.